Say what you will about the decomposing British class system, the follies of aristocrats have inspired some the finest comic scenes in Western literature. Few authors saw the excesses at closer range than Nancy Mitford, who drew on them for Love in a Cold Climate, a modern classic based in part on her storied and half-batty upper-class family. First published in 1949, this comedy of manners tells the story of the heiress Polly Montdore, an only child who flouts convention by marrying a middle-aged man who had been her mother’s lover. Mitford’s portrait of the young Polly sets the tone of a book that is witty and elegant without being aloof: “Polly was a withdrawn, formal little girl, who went through the day with the sense of ritual, the poise, the absolute submission to etiquette of a Spanish Infanta. You had to love her, she was so beautiful and friendly, but it was impossible to feel very intimate with her.”